According to FCI standard, the Rottweiler stands 61 to 68 cm (24-27 inches) at the withers for males, and 56 to 62.5 cm (22-25 inches) for females.[2] Average weight is 50 - 55 kg (80-120 pounds) for males and 42 kg (70 - 95 pounds) for females.(Wikipedia)
In the hands of a responsible owner, a well trained and socialized Rottweiler can be a reliable, alert dog and a loving companion. Rottweilers that are well trained and cared for can be as well behaved as any other dog and, in general, quick to learn. The Rottweiler is a working dog that is also good for guard duties.(Wikipedia)